Kent Fowler wrote:
...
And what happens if you just happen to burn a little bitty
hole in the tank with your torch?

You get a little bitty amount of propane oozing out (it's not under any
pressure) and burning _outside_ the tank (remember there's NO AIR in the
tank).

...You still have the vapor and the vapor is what is going to ignite first if you
happen to put a hole in that thin tank with a torch.

Wrong - 1. vapor won't ignite without oxygen, 2. There's nothing "thin"
about a 100# tank.

Dave:
The vapor inside my tank isn't going to spontaneously ignite.
It can't, without oxygen. So again, where is the risk

The little bitty hole and a heat source such as
your torch will sure do it.


Braaahh! Wrong again! A little bitty hole will not introduce air into
the tank. Using an OA torch to cut a tank can introduce oxygen
depending upon the mix, but Dave was using a propane torch - there's no
way that's going to put a hole, "little bitty" or otherwise, in the
tank.

Bob